[Length 13.5 in. Wingspan 17 in.]

This male Masked Duck flapping its wings was photographed at Alligator Pond, Laguna Atascosa NWR, TX. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D300 camera. (Date: April 29, 2009)

[Length 13.5 in. Wingspan 17 in.]

This female Masked Duck flapping its wings was photographed at Alligator Pond, Laguna Atascosa NWR, TX. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D300 camera. (Date: April 29, 2009)

[Length 13.5 in. Wingspan 17 in.]

This male Masked Duck was photographed at Alligator Pond, Laguna Atascosa NWR, TX. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D300 camera. (Date: May 2, 2009)

[Length 13.5 in. Wingspan 17 in.]

This male Masked Duck was photographed at Alligator Pond, Laguna Atascosa NWR, TX. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D300 camera. (Date: May 2, 2009)

[Length 13.5 in. Wingspan 17 in.]

This male Masked Duck was photographed at Alligator Pond, Laguna Atascosa NWR, TX. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D300 camera. (Date: May 2, 2009)

[Length 23 in. Wingspan 35 in.]

This pair of "Mexican" Ducks were photographed along the Rio Grande River at Candelaria, TX. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: June 2000)

[Length 22 in. Wingspan 30 in.]

This Mottled Duck was photographed at the Audubon Sabal Palms Sanctuary, Brownsville, TX. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=450mm) on a Nikon D200 camera. (Date: May 8, 2009)

[Length 22 in. Wingspan 30 in.]

This Mottled Duck was photographed at Bolivar Peninsula, TX. Photo taken with a Nikkor 70-200mm EDAF-S VR f2.8 lens + Nikkor TC14E II 1.4x Teleconverter (EFL=360mm) on a Nikon D100 camera. (Date: May 9, 2006)